Transcript for California Governor Declares State of Emergency After Earthquake

emergency in northern California after the biggest earthquake to hit the San Francisco bay area in 20 years, measuring 6.0. We have see seal Ya Vega in napa. Reporter: Good morning. The governor declared a state of emergency, and downtown napa hit the hardest. This building behind me, this was a law office and a wine bar. This morning, a pile of rubble with chunks just dangling precarously here. 3:20 A.M. Sunday, the earthquake strikes, the earth-shattering moment caught on surveillance video, shaking people out of bed, and rocking cars and buildings. I woke up and thought, oh, my god, this is it. This is the big one. Reporter: These store shelves thrashed around before the power goes out. Seconds later, the shaking is over, but the chaos has just begun. The monster 6.0 quake, the worst to hit the bay area in 25 years. Fires rage in the scenic tourist town of napa. More than a dozen buildings in the historic downtown ravaged. Shattered glass were cars buried in brick, and roads ripped wide open. The ceiling is crushed. The whole store is like that on the other side. Reporter: The control tower windows at the airport, blown out. And this clock frozen in time, marking the moment the quake hit. The glass from the mirrors put shards and fragments everywhere. Reporter: More than 200 people take ton local hospitals, including a 2-year-old boy in serious condition after being hit by debris. Fireplace collapsed in the home. Reporter: Power knocked out, and 30 buildings and homes too dangerous to go inside. Stay away from buildings that look like they're leaning. Reporter: And those allowed in, stunned by the damage. All the apartments pretty much look like this. Reporter: As the cleanup begins, so too does the fear of economic devastation as countless images emerge of the famed wine and olive oil stock left on pieces on the floor and shovelled into dumpsters. Authorities say this could have been so much worse. In the middle of the afternoon these streets would have been packed full of people. The price tag from the damage could top a billion dollars.

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